Which statement characterizes the absolute refractory period?
A) The neuron cannot fire again because the potassium channels are unable to open
B) The neuron cannot fire again because the sodium channels are unable to open
C) The neuron can fire again but only to a stronger than threshold stimulus
D) The neuron can fire again but only at a much slower rate
B
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Which of the following is NOT true of basic level categories?
A) They are always the most general category in a semantic network. B) They are the level at which most thinking occurs. C) They are the level at which prototypes exist. D) They are the terms used most often in conversation.
On a test with a population mean of 75 and standard deviation equal to 16, if the scores are normally distributed, what percentage of scores fall below a score of 83.8?
a. 55.00 b. 79.12 c. 20.88 d. 29.12 e. 70.88
What was the result of a study conducted by the Kaiser Family Foundation regarding the use of media?
a) Cyberspace activities have a positive effect on young people. b) Cyberspace activities serve as an alternative to substance use. c) Young people should use caution in what form of media they choose to use. d) Young people spend an average of 6.5 hours a day with media.
A spontaneous abortion is also known as
a) infertility. b) insemination. c) fertility. d) miscarriage.